Drawing old people can add an element of challenge to drawing cartoons because it takes some additional thought and skill to apply just the right amount of detail necessary to create an older look. By using lines and shading, you can make any of your cartoon characters look older.
Draw your cartoon person first, without worrying about any ageing effects. Concentrate on drawing the framework of your cartoon first. This is the outline of the person, male or female, that you're turning into a cartoon.
Sketch in two eyes, a nose and a mouth. Make the lips thin and bring the nose out a little farther than normal. This will help you develop an older appearance when you begin adding lines and shading to your cartoon. The initial drawing should look like a young version of the old person you want to sketch so that when you add the age details, it will look as though you have the same person older.
Shade and add lines to your cartoon character's face to bring out the age. While many cartoons lack some of the extensive detail found in realistic portraits, a cartoon drawing of an old person needs some of the detail to create the age effect. Add light pencil shading below and in the corners of the eyes and around the edges of the nose. These shadings will lift these features away from the face to create depth.
Sketch a full head of hair on your character, then use your eraser to remove a little of the hair at a time, thinning the initial hair and bringing the front hairline back. This will give you the same basic hair, but the receding and thinning effects will enhance the aged appearance.
Draw several lines over your cartoon's face to create wrinkles. For older men, darker lines and more pronounced wrinkles will work. For older women, use the tip of a finger to soften the wrinkles to produce the effect of a woman trying to age gracefully. The exception to this is when you want to create an old woman who might not care how gracefully she ages, such as a pioneer woman. When drawing lines, be sure to place vertical lines around the mouth and eyes and in other places they would naturally occur with age.